Update readme

README.md

@@ -1,8 +1,23 @@
-uuid-v4
-=======
+# uuid-v4
 
-A lightweight version 4 UUID generator. This code was taken from a stackoverflow answer.
+A lightweight version 4 UUID generator. The code was originally taken from a
+[stackoverflow answer](http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript)
 
-All credit goes to broofa (http://stackoverflow.com/users/109538/broofa)
+Thanks [broofa](http://stackoverflow.com/users/109538/broofa)!
 
-http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript
+# Usage
+
+```js
+var uuid = require('uuid-v4');
+var uuidv4 = uuid();
+```
+
+# Changelog
+
+* 0.0.5 - Fix invalid uuids
+        - Add test
+
+# Contributors
+
+* [leahciMic](https://github.com/leahciMic)
+* [ArtskydJ](https://github.com/ArtskydJ)